Theophylline is a dimethylated xanthine similar in structure to caffeine which is commonly found in tea, coffee and cola beverages (Hendeles and Weinberger, 1983; Rall, 1985). Clinically, its most important pharmacological ...

There is considerable evidence to indicate that most gas permeable contact lenses do not transmit sufficient oxygen to supply all the corneal oxygen requirement. This problem is further exacerbated by non-valid methods of ...

The objectives of the investigation were to establish diagnostic reference data; and to examine and report on the effects of sex difference and contralateral masking on the normal BAER. BAERs were elicited from the target ...